17020420524257 has 8 divisors (see below), whose sum is σ = 17058176192640. Its totient is φ = 16982669143440.

The previous prime is 17020420524227. The next prime is 17020420524319. The reversal of 17020420524257 is 75242502402071.

17020420524257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17020420524257 - 2⁸ = 17020420524001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17020420524227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6942719 + ... + 9068747.

It is an arithmetic number, because the mean of its divisors is an integer number (2132272024080).

Almost surely, 2^{17020420524257} is an apocalyptic number.

It is an amenable number.

17020420524257 is a deficient number, since it is larger than the sum of its proper divisors (37755668383).

17020420524257 is a wasteful number, since it uses less digits than its factorization.

17020420524257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143783.

The product of its (nonzero) digits is 313600, while the sum is 41.

The spelling of 17020420524257 in words is "seventeen trillion, twenty billion, four hundred twenty million, five hundred twenty-four thousand, two hundred fifty-seven".